now another four star general, john allen, is connected to the scandal. we will also look at who's who in this growing scandal. we will map out the key players and connect some of the dots. first, the big question tonight is who authorized the investigation which led to petraeus' stepping down and why? we know his extramarital affair was discovered when this woman, jill kelley, complained about anonymous and what might be considered mildly harassing e-mails. new tonight, a source tells cnn that kelley first mentioned the e-mails in a casual conversation with an fbi agent in may whom she knew. a casual conversation. the source tells us the fbi agent said, let me check it out. the fbi has been on the case since then, and now kelley finds herself in the middle of this drama. new tonight, we hear her voice for the first time in a 911 call to tampa police over the weekend. she called to complain about the people outside her house. listen. >> you know, i don't know if by any chance, because i'm an honorary council general so i have inviolability so they shouldn